{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T17:32:35Z","timestamp":1780594355522,"version":"3.54.1"},"reference-count":21,"publisher":"IOP Publishing","issue":"1","license":[{"start":{"date-parts":[[2018,1,29]],"date-time":"2018-01-29T00:00:00Z","timestamp":1517184000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/iop-standard\/v1"},{"start":{"date-parts":[[2018,1,29]],"date-time":"2018-01-29T00:00:00Z","timestamp":1517184000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["J. Radiol. Prot."],"published-print":{"date-parts":[[2018,3,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>After the Fukushima Daiichi nuclear power plant accident, the air dose gradually decreases every year due to the physical decay of radioactive materials and environmental changes, as well as countermeasures. However, there is little information on personal behavioural patterns and individual dose from external exposure among the inhabitants around the nuclear power plant. To evaluate the dose from external exposure in Minamisoma city, and compare the differences with outside Fukushima Prefecture, we started the external dose assessment project in cooperation with city officials in Minamisoma and three other cities in Japan where the natural terrestrial background radiation level is relatively high. In these four cities, external dose was measured every hour for two weeks using an individual electronic dosimeter D-shuttle. The places of activity of participants were recorded every hour to compare and evaluate the dose from external exposure, and to clarify whether there is a difference in the exposure dose by behaviour. The annual effective doses from external exposure for 100 participants from four municipalities ranged from 0.566 to 1.295 with a mean value of 0.784 mSv, which was below the level where it is necessary to initiate further remedial actions. Mean external dose in Minamisoma city (0.820 mSv\/year) was comparable to those in municipalities with a relatively high natural radiation background in Japan (0.793, 0.806, and 0.718 mSv\/year in Fukuyama, Nanto, and Tajimi, respectively). The time spent at home and in the workplace accounted for most of the time of the participants, and this also contributed to the majority of the total dose from external exposure. The amount of exposure at times other than while at home or in the workplace was very small regardless of the indoor or outdoor location in the city. For future dose reduction and radiation protection, continuous dosimetry and countermeasures at home and in the workplace are important for individuals who present high values.<\/jats:p>","DOI":"10.1088\/1361-6498\/aaa147","type":"journal-article","created":{"date-parts":[[2017,12,13]],"date-time":"2017-12-13T06:15:15Z","timestamp":1513145715000},"page":"273-285","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":11,"title":["Comparison of external doses between radio-contaminated areas and areas with high natural terrestrial background using the individual dosimeter \u2018D-shuttle\u2019 75 months after the Fukushima Daiichi nuclear power plant accident"],"prefix":"10.1088","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8027-202X","authenticated-orcid":false,"given":"Masaharu","family":"Tsubokura","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuhei","family":"Nomura","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Izumi","family":"Yoshida","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toyoaki","family":"Sawano","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9960-6779","authenticated-orcid":false,"given":"Makoto","family":"Miyazaki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Satoru","family":"Tomita","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Oikawa","family":"Tomoyoshi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masami","family":"Watanabe","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2018,1,29]]},"reference":[{"key":"jrpaaa147bib1","article-title":"Summary of low-dose radiation effects on health.","author":"UNSCEAR","year":"2010","type":"report"},{"key":"jrpaaa147bib2","article-title":"Annex D: health effects due to radiation from the Chernobyl accident","author":"UNSCEAR","year":"2008","type":"report"},{"key":"jrpaaa147bib3","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0065331","type":"journal-article","article-title":"The relationship between media consumption and health-related anxieties after the Fukushima Daiichi nuclear disaster","volume":"8","author":"Sugimoto","year":"2013","journal-title":"PLoS One"},{"key":"jrpaaa147bib4","article-title":"Annex A: levels and effects of radiation exposure due to the nuclear accident after the 2011 great east-Japan earthquake and tsunami","author":"UNSCEAR","year":"2014","type":"report"},{"key":"jrpaaa147bib5","doi-asserted-by":"publisher","first-page":"324","DOI":"10.1016\/j.scitotenv.2005.12.006","type":"journal-article","article-title":"Transfer of 137Cs from chernobyl debris and nuclear weapons fallout to different Swedish population groups","volume":"367","author":"Raaf","year":"2006","journal-title":"Sci Total Environ"},{"key":"jrpaaa147bib6","doi-asserted-by":"publisher","DOI":"10.1136\/bmjopen-2015-010970","type":"journal-article","article-title":"Estimated association between dwelling soil contamination and internal radiation contamination levels after the 2011 Fukushima Daiichi nuclear accident in Japan","volume":"6","author":"Tsubokura","year":"2016","journal-title":"BMJ Open"},{"key":"jrpaaa147bib7","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0100302","type":"journal-article","article-title":"Reduction of high levels of internal radio-contamination by dietary intervention in residents of areas affected by the Fukushima Daiichi nuclear plant disaster: a case series","volume":"9","author":"Tsubokura","year":"2014","journal-title":"PLoS One"},{"key":"jrpaaa147bib8","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1093\/jrr\/rrv051","type":"journal-article","article-title":"Dependence of radiation dose on the behavioral patterns among school children: a retrospective analysis 18 to 20 months following the 2011 Fukushima nuclear incident in Japan","volume":"57","author":"Nomura","year":"2016","journal-title":"J. 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All rights, including for text and data mining, AI training, and similar technologies, are reserved.","name":"copyright_information","label":"Copyright Information"},{"value":"2017-11-02","name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2017-12-13","name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2018-01-29","name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}